Calcium Reactors...what's HOT whats not?

[monza]

Looking to upgrade, I've been running an AquaMedic 1000 reactor flawlessly for years but my water volume and CA consumption has maxed out its output. My water volume is about 500 gal. including display, frag tank and sump.

So my short list of picks would be:

Canreef 2-24 (support the people who support this site and it looks really good and simple) http://www.canreef.com/brochure/reactor.pdf

The Deltec PF600s (a serious piece of hardware with a lot of features and a BIG price) http://www.deltecaquariumsolutions.com/calreactors.php

A Schuran Jetstream series 2 (Not so bling as a Deltec but seems to be pretty solid) http://schuran.com/seawater/hobby_reaktoren_e.html

The Aqua Medic 5000 (my last one was great, this is bigger and better)
http://www.aqua-medic.de/index0.html

So if any one has any thing to say about the above or has another choice of a top line calcium reactor they think kicks ass please let me know.

Thanks
Dave